Finding the Fourth Proportional to 21,928.43, 32,897.55 and 10,235.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,928.43 : 32,897.55 = 10,235.27 : x
2. Step 2: Convert to fraction form
   21,928.43/32,897.55 = 10,235.27/x
3. Step 3: Cross multiply
   21,928.43x = 32,897.55 × 10,235.27
4. Step 4: Simplify right side
   21,928.43x = 336,715,142.10
5. Step 5: Solve for x
   x = 336,715,142.10/21,928.43
6. Step 6: Final answer
   x = 15,355.19